Aplastic Anemia Types | Aplastic Anemia and MDS International Foundation (AAMDSIF) Return to top.

Aplastic Anemia Types

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Doctors classify acquired aplastic anemia into three types, based largely on the patient's neutrophil count. Neutrophils are a type of white blood cell that fight bacterial infections.

Moderate Aplastic Anemia (MAA)

If you have moderate aplastic anemia

  • You may have low blood cells counts, but not as low as with severe aplastic anemia. 
  • You may have few or no symptoms. 
  • Your doctor may not recommend treatment. Instead, your doctor may just keep an eye on your blood counts. 
  • Your condition may stay the same for many years. 

Severe Aplastic Anemia (SAA)

If you have severe aplastic anemia, at least two of the following are true: 

Very Severe Aplastic Anemia (VSAA)

If you have very severe aplastic anemia

  • Your neutrophil count is less than 200 per microliter.
  • Your blood counts are otherwise like those of someone with severe aplastic anemia.